Integral GRB241120.25: Global MASTER-Net observations report

MASTER-Tavrida robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the Integral GRB241120.25 (trigger No 10982,12h 57m 11.63s , +52d 08m 39.1s, R=0.0513333) errorbox 33434 sec after notice time and 33455 sec after trigger time at 2024-11-20 15:11:33 UT, with upper limit up to 18.2 mag. Observations started at twilight. The observations began at zenith distance = 73 deg. The sun altitude is -10.7 deg. The galactic latitude b = 65 deg., longitude l = 120 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2677397 We obtain a following upper limits. Tmid-T0 | Site |Filt.| Expt. | Limit| Comment _________|_____________________|_____|_______|______|________ 33545 | MASTER-Tavrida | C | 180 | 17.1 | 33795 | MASTER-Tavrida | C | 180 | 17.4 | 34045 | MASTER-Tavrida | C | 180 | 17.6 | 34294 | MASTER-Tavrida | C | 180 | 17.8 | 34474 | MASTER-Tavrida | C | 540 | 18.3 | Coadd 34953 | MASTER-Tavrida | C | 180 | 18.0 | 35204 | MASTER-Tavrida | C | 180 | 17.9 | 35454 | MASTER-Tavrida | C | 180 | 16.2 | 35704 | MASTER-Tavrida | C | 180 | 16.1 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.